pythonAI
diff --git a/‎compiler/gopherjspkg/doc.go
Lines changed: 12 additions & 0 deletions b/‎compiler/gopherjspkg/doc.go
Lines changed: 12 additions & 0 deletions
diff --git a/‎compiler/gopherjspkg/fs.go
Lines changed: 31 additions & 0 deletions b/‎compiler/gopherjspkg/fs.go
Lines changed: 31 additions & 0 deletions
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+// Package gopherjspkg provides core GopherJS packages via a virtual filesystem.
+//
+// Core GopherJS packages are packages that are critical for GopherJS compiler
+// operation. They are needed to build the Go standard library with GopherJS.
+// Currently, they include:
+//
+// 	github.com/gopherjs/gopherjs/js
+// 	github.com/gopherjs/gopherjs/nosync
+//
+package gopherjspkg
+
+//go:generate vfsgendev -source="github.com/gopherjs/gopherjs/compiler/gopherjspkg".FS -tag=gopherjsdev
@@ -0,0 +1,31 @@
+// +build gopherjsdev
+
+package gopherjspkg
+
+import (
+	"go/build"
+	"log"
+	"net/http"
+	"os"
+	pathpkg "path"
+
+	"github.com/shurcooL/httpfs/filter"
+)
+
+// FS is a virtual filesystem that contains core GopherJS packages.
+var FS = filter.Keep(
+	http.Dir(importPathToDir("github.com/gopherjs/gopherjs")),
+	func(path string, fi os.FileInfo) bool {
+		return path == "/" ||
+			path == "/js" || (pathpkg.Dir(path) == "/js" && !fi.IsDir()) ||
+			path == "/nosync" || (pathpkg.Dir(path) == "/nosync" && !fi.IsDir())
+	},
+)
+
+func importPathToDir(importPath string) string {
+	p, err := build.Import(importPath, "", build.FindOnly)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	return p.Dir
+}